Defining the Problem
Busy-ness. In-fighting. Relying too heavily on programs. Insecurity. These are the reasons you gave for why churches are not doing the great commission very well. All of these fall into a category I like to call "understandable but inexcusable".
My great friend John Dobbs was honest enough to admit that the problem is often with those in positions of leadership even.
So, we have churches full of people who don't want to do what Jesus said, and those churches are being led by people who don't want to do what Jesus said, and that's why they're lousy at carrying out the great commission. We'd rather huddle up with like-minded people, pool our ignorance, make fun of people who are different, create and sustain ineffective programs that drain resources away from things that might actually work, all the while patting ourselves on the back and purchasing more shiny things.
Is that an accurate assessment of the state of affairs in churches in America?